Yes, you main do this as a redirect. Your domain redirects clients to your storefront URL on the Lyv domain.
Checkout has to happen on the Lyv domain because we hold the LegitScript certification and compliant payment infrastructure required to process medication payments. Getting your own LegitScript certification costs several thousand dollars per year and requires ongoing compliance oversight.
The redirect gives your clients branded continuity while keeping the compliance work on Lyv's side and reducing your costs.